[trebor]

Scratches that don't catch your nail can be polished out, those that are deeper will need paint if you want to eliminate them altogether
You can use a mixture of paint and lacquer with a cocktail stick and touch the stone chip up but often the slight colour mismatch will be noticeable and the touched up area will be raised, you can gently sand it and machine polish back to make it look better
This is a bad time of year to keep cars looking tip top and you will need to wash it more plus once the roads are gritted more stone chips will be likely
If it is already in good condition keep it that way with a glaze and decent wax, poorboys black hole and collinite 476 wax are highly recommended